1 // RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fobjc-arc -verify %s 2 3 typedef const struct __CFString * CFStringRef; 4 typedef const void * CFTypeRef; 5 extern "C" CFTypeRef CFBridgingRetain(id X); 6 extern "C" id CFBridgingRelease(CFTypeRef); 7 8 9 @interface Object 10 @property CFStringRef property; 11 - (CFStringRef) implicitProperty; 12 - (CFStringRef) newString; 13 - (CFStringRef) makeString; 14 @end 15 16 extern Object *object; 17 18 // rdar://9744349 19 id test0(void) { 20 id p1 = (id)[object property]; 21 id p2 = (__bridge_transfer id)[object property]; 22 id p3 = (__bridge id)[object property]; 23 return (id) object.property; 24 } 25 26 // rdar://10140692 27 CFStringRef unauditedString(void); 28 CFStringRef plusOneString(void) __attribute__((cf_returns_retained)); 29 30 #pragma clang arc_cf_code_audited begin 31 CFStringRef auditedString(void); 32 CFStringRef auditedCreateString(void); 33 #pragma clang arc_cf_code_audited end 34 35 void test1(int cond) { 36 id x; 37 x = (id) auditedString(); 38 x = (id) (cond ? auditedString() : (void*) 0); 39 x = (id) (cond ? (void*) 0 : auditedString()); 40 x = (id) (cond ? (CFStringRef) @"help" : auditedString()); 41 42 x = (id) unauditedString(); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}} 43 x = (id) (cond ? unauditedString() : (void*) 0); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}} 44 x = (id) (cond ? (void*) 0 : unauditedString()); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}} 45 x = (id) (cond ? (CFStringRef) @"help" : unauditedString()); // expected-error {{requires a bridged cast}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRelease call to}} 46 47 x = (id) auditedCreateString(); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}} 48 x = (id) (cond ? auditedCreateString() : (void*) 0); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}} 49 x = (id) (cond ? (void*) 0 : auditedCreateString()); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}} 50 x = (id) (cond ? (CFStringRef) @"help" : auditedCreateString()); // expected-error {{requires a bridged cast}} expected-note {{use CFBridgingRelease call to}} 51 52 x = (id) [object property]; 53 x = (id) (cond ? [object property] : (void*) 0); 54 x = (id) (cond ? (void*) 0 : [object property]); 55 x = (id) (cond ? (CFStringRef) @"help" : [object property]); 56 57 x = (id) object.property; 58 x = (id) (cond ? object.property : (void*) 0); 59 x = (id) (cond ? (void*) 0 : object.property); 60 x = (id) (cond ? (CFStringRef) @"help" : object.property); 61 62 x = (id) object.implicitProperty; 63 x = (id) (cond ? object.implicitProperty : (void*) 0); 64 x = (id) (cond ? (void*) 0 : object.implicitProperty); 65 x = (id) (cond ? (CFStringRef) @"help" : object.implicitProperty); 66 67 x = (id) [object makeString]; 68 x = (id) (cond ? [object makeString] : (void*) 0); 69 x = (id) (cond ? (void*) 0 : [object makeString]); 70 x = (id) (cond ? (CFStringRef) @"help" : [object makeString]); 71 72 x = (id) [object newString]; 73 x = (id) (cond ? [object newString] : (void*) 0); 74 x = (id) (cond ? (void*) 0 : [object newString]); 75 x = (id) (cond ? (CFStringRef) @"help" : [object newString]); // a bit questionable 76 } 77 78 // rdar://problem/10246264 79 @interface CFTaker 80 - (void) takeOrdinary: (CFStringRef) arg; 81 - (void) takeVariadic: (int) n, ...; 82 - (void) takeConsumed: (CFStringRef __attribute__((cf_consumed))) arg; 83 @end 84 void testCFTaker(CFTaker *taker, id string) { 85 [taker takeOrdinary: (CFStringRef) string]; 86 [taker takeVariadic: 1, (CFStringRef) string]; 87 [taker takeConsumed: (CFStringRef) string]; // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}} 88 } 89 90 void takeCFOrdinaryUnaudited(CFStringRef arg); 91 void takeCFVariadicUnaudited(int n, ...); 92 void takeCFConsumedUnaudited(CFStringRef __attribute__((cf_consumed)) arg); 93 #pragma clang arc_cf_code_audited begin 94 void takeCFOrdinaryAudited(CFStringRef arg); 95 void takeCFVariadicAudited(int n, ...); 96 void takeCFConsumedAudited(CFStringRef __attribute__((cf_consumed)) arg); 97 #pragma clang arc_cf_code_audited end 98 99 void testTakerFunctions(id string) { 100 takeCFOrdinaryUnaudited((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}} 101 takeCFVariadicUnaudited(1, (CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}} 102 takeCFConsumedUnaudited((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}} 103 104 void (*taker)(CFStringRef) = 0; 105 taker((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}} 106 107 takeCFOrdinaryAudited((CFStringRef) string); 108 takeCFVariadicAudited(1, (CFStringRef) string); 109 takeCFConsumedAudited((CFStringRef) string); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'CFStringRef'}} expected-note {{use __bridge to}} expected-note {{use CFBridgingRetain call to}} 110 } 111 112 // rdar://12788838 113 id obj; 114 115 void rdar12788838() { 116 void *foo = reinterpret_cast<void *>(obj); // expected-error {{cast of Objective-C pointer type 'id' to C pointer type 'void *' requires a bridged cast}} \ 117 // expected-note {{use __bridge with C-style cast to convert directly}} \ 118 // expected-note {{use CFBridgingRetain call to make an ARC object available as a +1 'void *'}} 119 } 120
